Katie,
I'm happy you are home, but worried about your pain levels and passing out. Are the pain meds not working, or do you have to wait too many hours in between before being able to take the next dose? I can't imagine how you're able to get around at all, after having 13 hours of surgery on your back in the last week. Do you have a walker left over from the TKR? Would it help your balance to use the walker to go to the bathroom? Soft hugs and prayers to you. I'm glad you have a nurse to assist you!